Mortise-marking tool.



J. H. OSTBERG.

MORTISE MARKING TOOL.

APPLICATION FILED MAY 18, 1914.

Patented Nov. 17, 1914.

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J. H. OSTBERG.

MORTISE MARKING TOOL.

APPLICATION IILED MAY 18, 1914.

Patented Nov. 17, 1914.

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51% KM @M%% fiuaw ATTORNEYS THE NORRIS PETERS C0,. PMGNLLITHO,I WASHING TON D. C.

JOHN'H. OSTIBERG, OF BRIDGEPORT, CONNECTICUT..

MORTISE-MARKING TOOL.

Specification of Letters Patent.

Patented Nov. 17, 1914.

Application filed May 18, 1914. Serial No. 839,187.

T all whom it may concern Be it known that 1, JOHN H. Os'rnnno, a subject of the King of Sweden, and resident of Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain' new and useful Improvements in Mortise-Marking Tools, of which the following is a specification.

This invention relates to mortise gages such as are employed for marking out upon wood the size and location of cuts to be made to form mortises to receive striking plates, locks. butts, &c.

The object of the invention is to provide an improved form of gage whereby a large variety of work may be produced, particularly to provide a gage having all necessary means for marking most any character of a mortise which is necessary to be cut by the average carpenter in the hanging of. doors, windows, blinds, locks and striking plates; further to construct the same so as l to include several combined marking devices and guides each of which may be adjusted with relation to the other to meet different requirements or emergencies, and finally to design the gage so that the same can be produced in a simple and practical way, thus forming a desirable and profitable article of manufacture. 1

Referring to the several figures of the accompanying two sheets of drawings illustratin my said invention it will be noted that similar characters of reference have been employed to designate like or corre sponding parts throughout the several figures and of which Figure 1 shows a front perspective view of my improved form of gage as applied to the edge of a door and upon which is indicated two lines as having been marked by the gage for a lock mortise. Fig. 2 is a plan view of the gage shown in Fig. 1. Fig. 3 isa central vertical longitudinal cross section taken on line 33 of Fig. 4. Fig. 4 is an end view as seen from the left of Figs. 1 and-2. Fig.5 is a plan view upon a slightly reduced scale of the mortise gage shown applied to a door' jamb as in the act of marking a mortise for a striking plate. Fig 6 is a top edge view of the gage as shown in Fig. 5. Fig. 7 is a central vertical sectional view taken on line 77 of Fig. 6. Fig. 8 is a plan view of the gage-the. same-being adjusted for the marking of two distinct lines of a mortise, for a butt, by two separate points. Fig. 9 is a detached plan view of one of the telescopic marking members contained within a portion of the gage and Fig. 10 is a similar detached plan view of a double ended marking member which is adjustably mounted within the gage.

I am aware that gages have already been produced for marking mortises and that there are some gages which have apparently been especially devised for marking mortises and butts. My device, however, is designed to go a step or two farther in the same direction by including means for marking mortises for striking plates and other similar articles which require two parallel lines adjacent to the inner corner of a rabbet of a jamb as illustrated in Fig. 5.

Referring in detail to the characters of reference marked upon the drawings 11 represents the body of my improved mortise gage and which as will be noted is preferably formed of cast metal. This body includes parallel finished end surfaces 12 and 13 and parallel longitudinal holes or bores 14 and 15 which open out through the said finished faces of the ends. The opposite edge portions of the body of the gage are provided with longitudinal slots 16 and 17 that extend into the before mentioned bores and thus form a way for the marking points a, b, a, (Z and e of the tool. The opposite sides of the upper edge portion of the body,

as seen in Fig. 7, are also provided with slotted screw ways 18 and 19 to accommodate set screws 20, 21 and 22 as will later be explained. The smaller bore 16 in the body is provided with a single slotted screw way 23 which serves to accommodate a set screw 24:. This last mentioned elongated bore 16 serves to accommodate the adjustable slide 25 upon the opposite ends of which are formed the marking points a and b. The shouldered binding screw 24 passes freely through the screw way 23 of the body of the gage and enters the said slide 25 in a way to secure the same in its adjusted positions. The marking points of the slides extend out through the slots 16 and 17 in the edge of the gage and are designed to be extended out more or less from the end faces 12 and 13 of the gage and secured in position in a manner to operate in connection with the said end surfaces.

The larger bore 14 in the body accommodates the telescopic slides 26 and 27 shown in Figs. 3, 7 and 9 and as will be seen, in-

, shouldered screw cludes a tubular member 26 having an outwardly disposed marking point a and an inwardly disposed marking point d. This tube is provided with a shouldered binding screw 21 which like the screw 22 freely passes through the slot 19 in the side of the gage body and is seated in the said tube '26 in a way to secure the same in positionafter being adjusted -longitudinally. The slide rod 27 is mounted within this tubular member 26 and like the latter is also provided with a marking point c. This marking point is designed to be adjusted with reference to the marking point 0 and likewise is intended to be used in conjunction therewith so as to form two parallel lines (see Figs. 1 and 5). These two sliding members 26 and 27 are secured together by means of the set screw 20 and whereby the two may be adjusted either separately or together as occasion may require. These two marking points 6 and 0 like the marking pointsa and b of the other rod are operated longitudinally through the before mentioned slots, and extend out from the face as shown in Figs. 5 and 8 to form operating points that can be set with special reference to either .end of the body of the gage.

A. binding screw 20 is provided for the rod 27 and is located upon the same side of the body as the screw 24 and is so. arranged as to set the rod with reference to the body andirrespective of the tubular slide 26 thus permitting the tubular member to be adj usted without changing the position of the point e of the rod 27. I provide a series of graduations 31 upon the edge portions of the body adjacent to the slots 16 and 17 for the purpose of being read in connection with the marking pointers a, b, 0 and e and whereby the distance from the end faces 12 and 13 may readily be determined and likewise whereby the distance between the markers 0 and 6 can be determined.

' An adjustable end plate 28 is attached to the end of the gage body by means of a 29. The same passes freely through a slot 30 in the said plate and engages the end of the body in a way to secure the plate in either of its adjusted positions, see Figs. 1 and 5. This plate is designed to form a guide for the plate when producing certain kinds of marks, see Fig. 1 and is made adjustable so as to be set differently as in the production of other forms of marks as seen in Figs.'5 and 6.

Having thus described my invention what I claim and desire to secure by Letters Patent 1s:

1. In a gage of the class described, the

Copies of this patent may be obtained forffive cents each. by addressing the Commissioner of Patents 1 'Washingtomlhtlfi- .1 i

combination of a body portion having a longitudinal bore therethrough and a slot in its edge portion communicating with the said bore, a tubular slide mounted in said bore having-a marking point thereon that extends through and operates in the said slot,

' a second slide within the tubular slide and extended out -of, .one end thereof and into the said bore having a marking point thereon which projects through the slot to operate in conjunction with the marking point of the tubular slide, and a set screw seated in the body forsecuring' the second slide in various adjusted positions and in a way to leave the first slide free to be operated, a plate attached to the end of the bodyto form a uide, and means for .adjustably holding the plate to operate in conjunction with the marking points of the slides.

2. In a gage of the class described, the combination of a body portion having two longitudinal bores therethrough and slots in two edge portions of the body one communicatingwith each of the said bores, a tubular slide mounted in one of the said bores and, havlng a marking point thereon and. ex

tended into the slot, a second slide within the tubular slide and also having a marking point thereon to operate in conjunction with the marking point of the tubular slide, a second. slide rod mounted in the second bore and having a point on each end portion, one point extending through the slot of the bore and the other point-upon the outside-of the body, and screws for securing said slides in various adjusted positions.

3. In a gage of the class described, the combinationvof abody portion having two longitudinal borestherethrough and slots intwo edge portions of the body one communicating with each of the said bores, a. tubular slide mounted in one of the said bores and having a marking point thereon extended into the slot, a second slide within the tubular slide and also having a marking point thereon and extended through the slot to operate in conjunction with the marking point of the tubular slide, a second slide rod mounted in the second bore and having a point. to extend through the slot of said bore,

a guide plate adjustably secured to the end of the body and adapted to beset and used in conj points carried by the slides.

Signed at Bridgeport, in

day of May A. D., 1914.

Y Witnesses:

C. M. NEWMAN, ALEX. L. Di; Lenn JOHN H. osTBEne. 

